Pump



March 11, 1930. G. T. RUXTON PUMP Filed July 23, 1928 In V8]? :3 0r.

v HMIPHL IHI ll lu l Patented Mar. 11, 1930 UNITED STATES PATENT OFFICE GEORGE T. RUXTON, OF ALAMEDA, CALIFORNIA, ASSIGNOR TO PACIFIC PUMPING CO.,

OF SAN FRANCISCO, CALIFORNIA,

A CORPORATION OF CALIFORNIA PUMP Application filed July 23,

My invention has for its object a vertical shaft pump and associated mechanism for operating, driving, supporting and protecting the same.

A further object is a pump of the character described wherein the parts may be assembled with the least efiort and greatest accuracy and maintained in operating condition under the most adverse conditions.

A further object is a pump of the character described in which the parts may be assembled or dis-assembled with the greatest facility and when assembled as a unitary structure is readily transported, handled, installed or removed.

Other objects will appear from the drawing and specifications which follow.

By referring to the drawing my invention Will be made clear.

Fig. 1 is a side view of a vertical shaft, motor or gasoline engine driven pump adapted to drive the same, assembled as a unitary structure and showing certain portions in cross section.

Fig. 2 is a fragmentary cross section of the upper portions of certain of the parts of Fig. 1.

Throughout the figures similar numerals refer to identical parts.

Numeral 1 indicates a conventional centrifugal pump having a discharge outlet 2 and a large area inlet provided at 3 through the meshes of the screen member 4. The impeller of the pump is mounted on the lower 35 end of the shaft 5 and the shaft 5 and its bearings are protected by the hollow column 6.

At 7 is a conventional internal explosion engine as motor means and adapted to rotate the shaft 5 to drive the impeller of the 40 pump 1.

The engine frame or base is provided with a collar 8, in threaded engagement with the upper portion of the column 6 thereby centering the motor 7 with the shaft 5.

At 9 is a spider having a central bushing 10 adapted to be clamped about the outer periphery of the upper portion of the column 6 and therefore mechanically concentric with the shaft and the motor means.

Over the engine 7 is the top ring 11, and

1928. Serial No. 294,676.

spaced therefrom the cover 12 and bolts and nuts 13, 14, 15 and 16 pass upward through the ring 11 and engage the top 12.

Nuts as 17 18, 19, 20 hold the ring 11 and cover 12 in spaced relation.

The cover 12 is provided with an overhanging edge 21, and the ring 11, is provided with a cylindrical depending skirt 22 preferably of canvas or other suitable fabric.

The skirt 11 hangs below the motor 7, and ventilation is freely effected by allowing a passage of air upward as in the direction of arrow 23, through and around the motor 7, and out through the opening 24, of the ring 11, and thence discharges into the atmosphere in the direction of the arrow 25.

The-skirt 22 being of fabric or other flexible material, may be lifted for access to the motor without disturbing any of the other parts, and at all times protects the motor from the weather and serves as a flue for ventilation. At 30 is an eye bolt adapted to raise the entire structure as a unit, as by the hook and chain at 31.

The structure here shown is particularly suited for simplicity of assembly of the several parts, thus the motor is provided with a concentric collar 8, which latter is threaded during the same machine setting as the boring of the conventional bearings and other parts concentric with the shaft, as performed in the shop. Likewise the boring of the collar 10, in the spider 9 and the assembly of the collars 8, and 10, upon the same cylindrical casing 6, provides a plurality of concentric machined surfaces insuring the proper alignment of the shaft 5, the motor 7 and the spider 9. Thus the parts specified and including other machined elements, as the bolts 13, 14, 15 and 16 together with the ring 11 and cover 12 are all secured in proper alignment, and lifting member 30 is automatically positioned cen tral with and in axial alignment with the shaft 5.

Moreover the lifting of the structure through the ring 30 does not stress any of the operating parts, the lifting strains being transmitted from the cover 12 through the bolts 13, 14, 15, and 16, and the spider 9, collar 10 and collar 6.

The apparatus may thus be most easily assembled and handled in the shop, in transportation and in the field without danger of disturbing the adjustment of the operating parts.

I claim:

A vertical shaft centrifugal pump comprising motor means having a rotor and a stationary frame, an impeller, and a casing for the impeller, a hollow column fixed at each end by circular machined joints to said frame and to said casing, and having a concentric circular exterior portion, a shaft central within said column and having the rotor fixed on one end and the impeller on the other end thereof, a spider having a machined joint with said column portion, a ventilating ring over said motor means, a cover over said ring and a plurality of spacing members connecting said spider said ring and said cover in spaced relation and positioned concentric with said column.

GEORGE T. RUXTON. 

